write four features of bryophyta
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Answer:
The defining features of bryophytes are:
The defining features of bryophytes are:Their life cycles are dominated by the gametophyte stage.
The defining features of bryophytes are:Their life cycles are dominated by the gametophyte stage.Their sporophytes are unbranched.
The defining features of bryophytes are:Their life cycles are dominated by the gametophyte stage.Their sporophytes are unbranched.They do not have a true vascular tissue containing lignin (although some have specialized tissues for the transport of water)
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Features of Bryophytes:
1. Bryophytes grow in damp and shady places.
2. They follow heterologous haplodiplobiontic type of life cycle.
3. The dominant plant body is gametophyte on which sporophyte is semiparasitic for its nutrition.
4. The thalloid gametophyte differentiated in to rhizoids, axis (stem) and leaves.
5. Vascular tissues (xylem and phloem) absent.
6. The gametophyte bears multi-cellular and jacketed sex organs (antheridia and archegonia).
7. Sexual reproduction is oogamous type.
8. Multi-cellular embryo develops inside archegonium.
9. Sporophyte differentiated into foot, seta and capsule.
10. Capsule produces haploid meiospores of similar types (homosporous).
11. Spore germinates into juvenile gametophyte called protonema.
12. Progressive sterilization of sporogenous tissue noticed from lower to higher bryophytes.